Fruit jar cover tool



Jan. 27,1942. j l l.. Gnd 2,271,147

FRUIT yJ'AR'COVER TOOL y Filed OC. 9, 1959 Lennard UHU Patented Jan. 27, 1942 UNITED STATES TENT OFFICE 2,271,147 y FRUIT JAR COVER TOOL Leonard Otto, Tomahawk, Wis.

Application October 9, 1939, Serial No. 298,643 y (ci. :i1-15.1

l Claim.

This invention pertains to fruit jar cover tools, and more particularly to a combination tool for both the removal and attachment of threaded `covers upon jars of the Mason or Ball type.

The invention has primarily for its kobject to provide a simple and inexpensive tool for clamping engagement with a fruit jar cover to remove or tighten the same, and including means for turning the lower edge of the Vcover down upon its sealing washer to insure a tight seal.

Incidental to the foregoing, a more specific object of the invention resides in the provision of a tool consisting of a resilient clamping loop for gripping engagement with the threaded periphery ofl a jar cover, and a lever loosely pivoted upon the tool concentric with the cover, and provided with a revolvable disk for engaging the lower edge of the cover to turn the same down upon a sealing washer as the lever is rotated about its connection.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the novel construction, combination, and arrangement of parts, substantially as hereinafter described, and more particularly defined by the appended claim, it being understood that such changes in the precise embodiment of the herein disclosed invention may be made as come within the scope of the claim.

In the accompanying drawing is illustrated one complete example of the physical embodiment of the present invention constructed according to the best mode so far devised for the practical application of the principles thereof.

In the drawing:

Figure 1 is a plan view of a tool constructed in accordance with one form of the invention; and

Figure 2 is a longitudinal section taken on the line 2 2 of Figure l.

Referring now more particularly to the accompanying drawing, the invention is shown applied to a conventional fruit jar J of the Mason or Ball type, and provided with a threaded Acover C turned down upon a sealing Washer R, the parts being shown in dot and dash lines.

The tool, designated generally by the letter T, consists of a resilient wire clamping loop 3 adapted to engage the threaded periphery of the cap C, and terminating in handles 4, by means of which squeezing action upon the loop 3 is obtained.

Either brazed, Welded, or otherwise secured upon a portion of the loop 3 is a plate k5, to which a lever 6 is pivotally connected, concentric to the cover C when the tool is clamped thereon. The lever 6 consists of a rod 1 provided with an oiset vertical end 8 loosely pivoted within the plate 5, to allow both rotary and vertical movementr of the rod, which is provided at its outer end with a'suit'able handle 9, Loosely mounted upon the rod 6, adjacent the handle, is a disk I0 adapted to engage the lower edge c ofthe cover C, as best shown in Figure 2.

In operation, the loop 3 is clamped within one of the top turns of the threaded periphery of the cap C, this position of the clamp being determined by the plate 5, which engages the top of the cover to support the loop. 'I'he loop is then securely clamped upon the `cover by squeezing the handles 4, after which the operator, by means of the handle 9, is enabled to force the edge of the disk I0 down upon the lower edge c of the cover because of the loose connection of the lever with the plate 5. Obviously, as the lever 6 is rotated about its pivotal axis, the lower edge of the cover will be turned downwardly against the sealing washer R, by means of downward pressure exerted by the operator upon the handle 9.

From the foregoing explanation, considered in connection with the accompanying drawing, it will be readily seen that an exceedingly simple and inexpensive tool has been devised, which can be used in the conventional manner for either removing or tightening threaded covers upon fruit jars, and vby means of the disk I0, the lower edge of the cover is readily turned down upon 'the sealing rubber to insure a tight seal, an operation'heretofore performed by hand in an awkward and inecient manner.

I claim:

A fruit jar cover tool comprising, a resilient clamping loop for engaging the threaded periphery of a jar cover, the ends of said loop being normally spaced apart and Vprovided with handles, a plate secured to a portion of said loop and extending inwardly and toward the center of sai-d loop for engagement with the top of the jar cover to support the loop thereon, a rod provided with a handle atits outer end and a lateral extension at its inner end loosely projecting through said plate to allow movement of said handle in both horizontal and vertical planes, and a disc rotatably journaled on said rod and confined between the rod handle and the loop, said rod projecting downwardly at an incline to theA horizontal and to said loop and plate, whereby to dispose the lower 'portion of the disc under said loop for engagement with the flared edge of the cover to turn the same downwardly upon rotation of said rod and downward exertion of force upon said handle.

LEONARD OTTO. 

